The effects of changing land use and flood hazard on poverty in coastal Bangladesh
Adnan, Mohammed Sarfaraz Gani and Abdullah, Abu Yousuf Md and Dewan, Ashraf and Hall, Jim W. (2020) The effects of changing land use and flood hazard on poverty in coastal Bangladesh. Land Use Policy, 99. 104868. ISSN 0264-8377 (https://doi.org/10.1016/j.landusepol.2020.104868)
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Abstract
The construction of polders in the coastal region of Bangladesh has significantly modified the patterns of flooding, as well as leading to significant land use/land cover (hereinafter, LULC) changes. The impact of LULC change and flooding on poverty is complex and poorly understood. This study presents a spatiotemporal appraisal of poverty in relation to LULC change and pluvial flood risk in the south western embanked area of Bangladesh. A combination of logistic regression (LR), cellular automata (CA), and Markov Chain models were utilised to predict future LULC based on historical data. Flood risk assessment was performed at present and for future LULC scenarios. A spatial regression model was developed, incorporating multiple parameters to estimate the wealth index (WI) for present-day and future scenarios. In the study area, agricultural lands reduced from 34 % in 2005 to 8% in 2010, while aquaculture land cover increased from 17 % to 39 % during the same time. The rate of LULC change was relatively low between 2010 and 2019. Based on the recent trend, LULC was predicted for the year 2030. Flood risk was positively correlated with LULC and the expected annual damage (EAD) was estimated at $903 million in 2005, which is likely to increase to $2096 million by 2030, considering changes in LULC scenarios. The analysis further showed that the EAD and LULC change were negatively associated with the WI. Despite consistent national GDP growth in Bangladesh in recent years, the rate of increase of WI is likely to be low in the future because flood risk and patterns of LULC change have a negative effect on WI.
ORCID iDs
Adnan, Mohammed Sarfaraz Gani ORCID: https://orcid.org/0000-0002-7276-1891, Abdullah, Abu Yousuf Md, Dewan, Ashraf and Hall, Jim W.;-
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Item type: Article ID code: 85141 Dates: DateEvent31 December 2020Published1 July 2020Published Online19 June 2020AcceptedNotes: F Subjects: Geography. Anthropology. Recreation > Environmental Sciences Department: Faculty of Engineering > Civil and Environmental Engineering Depositing user: Pure Administrator Date deposited: 17 Apr 2023 13:54 Last modified: 03 Dec 2024 01:24 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/85141